Maize farming guide — Kenya
Soil requirements, top counties, seed varieties, fertilizer plan & economics
To grow maize in Kenya, aim for soil pH 5.5–7 (loam soils); the best-suited counties are Nakuru, Narok, Uasin Gishu, Nandi, Baringo. Apply DAP or NPK at planting and top-dress with CAN at Week 4–6 after germination. A well-managed crop yields about 1,800 kg/acre (~KES 81,000 gross per acre).
Interested in starting or scaling maize farming in Kenya? This comprehensive guide maps out the optimal soil requirements (such as target pH ranges), the most suitable counties for growing maize, certified seed varieties, seasonal fertilizer guidelines, and a detailed per-acre production budget to set you up for a successful harvest.
Soil requirements
Growing conditions for Maize
Maize does best with 500–1,600 mm of rainfall a year at 0–2,500 m above sea level. In drier areas, irrigation or water harvesting closes the gap; outside the altitude band, growth and yields drop.
Optimizing soil and fertilizers for Maize in Kenya
To achieve maximum yields when farming maize in Kenya, managing soil suitability is crucial. This crop performs best within a soil pH range of 5.5 to 7. Soils that fall outside this range can lock out essential macro and micro-nutrients, leading to stunted growth or crop failure. For acidic soils, applying dolomitic or calcitic agricultural lime is recommended at least 30 days before planting to normalize acidity.
Fertilizer application should be calibrated based on the crop’s nutrient demands. Maize has a high nitrogen requirement, high phosphorus requirement, and medium potassium demand. Using certified seed varieties suited for your specific altitude and rainfall pattern, combined with a precise basal and top-dressing program (such as applying CAN at Week 4–6 after germination), ensures high crop quality and protects your overall farm investment.
How to grow maize in Kenya
- 1Prepare the soilEnsure soil pH is between 5.5 and 7. Preferred texture: Loam. Apply agricultural lime if your pH is below 5.5, ideally 30 days before planting.
- 2Plant at the right timePlant maize during Long Rains (Sowing & Basal Fertilizer (DAP/NPK)–Crop Protection & Scouting) or Short Rains (Fast Sowing & Basal Fertilizer–Fast Growth Scouting) or Dry Season (Land Preparation & Manure–Seed Selection & Storage), timed to the start of the rains.
- 3Apply basal fertilizerMaize needs high nitrogen, high phosphorus, and medium potassium. Apply a balanced basal fertilizer such as DAP or NPK at planting.
- 4Top-dressAt Week 4–6 after germination, apply 1 bag(s) per acre of CAN. When plant is knee-high broadcast between rows
- 5Monitor and harvestScout regularly for pests and disease. Expected yield is about 1,800 kg/acre at roughly KES 45/kg.
Best counties for Maize
Challenging counties for Maize
These counties may need soil amendments for Maize
Certified seed varieties
Planting calendar
Long Rains
Short Rains
Dry Season
Economics
Top dressing
When plant is knee-high broadcast between rows
Fertilizer prices
Subsidized price / 50kg bag
Frequently asked questions about maize farming in Kenya
What soil pH is best for growing maize in Kenya?
Maize grows best in soil with a pH of 5.5 to 7. If your soil is more acidic than pH 5.5, apply agricultural lime about 30 days before planting to raise the pH and free up nutrients. The preferred soil texture is loam.
Which counties are best for maize farming in Kenya?
By soil suitability, the top counties for maize are Nakuru, Narok, Uasin Gishu, Nandi, Baringo. A full ranking of all 47 counties, each with a suitability score, is shown above.
What fertilizer does maize need?
Maize has high nitrogen, high phosphorus, and medium potassium requirements. Apply a balanced basal fertilizer such as DAP or NPK at planting, then top-dress with 1 bag(s) per acre of CAN at Week 4–6 after germination.
When should I plant maize in Kenya?
Plant maize during Long Rains (Sowing & Basal Fertilizer (DAP/NPK) to Crop Protection & Scouting) or Short Rains (Fast Sowing & Basal Fertilizer to Fast Growth Scouting) or Dry Season (Land Preparation & Manure to Seed Selection & Storage), timed to the start of the rains in your area.
How much can I earn from maize per acre in Kenya?
Maize yields about 1,800 kg per acre. At a market price of roughly KES 45/kg, that is around KES 81,000 per acre in gross revenue, before input and labour costs.
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